| A | B |
|---|
| emerging adulthood | The period between the ages of 18 and 25, which is now widely thought of as a separate development stage. |
| homeostasis | The adjustment of all the body's systems to keep physiological functions in a state of equilibrium. |
| replacement rate | The number of births per woman that would be required to maintain a nation's (or the world's) population with no increases or decreases. |
| edgework | Occupations, recreational activities, or other ventures that involve a degree of risk or danger. |
| extreme sports | Forms of recreation that include apparent risk of injury or death and that are attractive and thrilling as a result. |
| drug abuse | The ingestion of a drug to the extent that it impairs the user's biological or psychological well-being. |
| drug addiction | A condition of drug dependence in which the absence of the given drug from the individual's system produces a drive--physiological,, biological, or both--to ingest more of the drug. |
| social norms approach | A method of reducing risky behavior among emerging adults that is based on their desire to follow social norms. |
| stereotype threat | The fear that someone else will judge one's appearance or behavior negatively and thereby confirm that person's prejudiced attitudes. |
| diathesis-stress model | The view that psychological disorders, such as schizophrenia, are produced by the interaction of a genetic vulnerability (the diathesis) and stressful environmental factors in life events. |
| cohabit | To live with an unrelated person--typically a romantic partner--to whom one is not married. |
